HardLabs

Divergence Meter Control Board

q61org·divergence_meter·dm_control/dm_control.kicad_pcb

Divergence Meter Control Board layout, top view — open source AVR/Arduino board by q61org
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About the Divergence Meter Control Board

Divergence Meter Control Board is an open source AVR/Arduino PCB design by q61org, published on GitHub. It is a 2-layer board measuring 89 × 47 mm, with 102 components from 60 distinct parts.

Its main chip is the ATMEGA328P-A, from the AVR/Arduino family. Other key parts include the MCP73831, TLV62090, LM3478, FT231XS and DS3234. By type, the board carries 29 resistors, 25 capacitors, 8 test points, 7 ICs, 7 diodes and 6 connectors.

It belongs with the power & battery designs in this gallery.

From the project

A divergence meter that tries to look just like the one in the anime.

This board is the motherboard of the divergence meter.

The board has the following functionalities on board: - Lithium-ion battery charger - 3.7V to 180V DC/DC boost converter - 3.7V to 3.3V DC/DC buck converter - Microcontroller (ATmega328P) that controls nixie tubes - USB to UART converter (FT231X) - Accurate RTC (DS3234)

You must be careful about power supplies on this board, as they can be hazardous to you in some ways.

Main components on the Divergence Meter Control Board

MCP73831TLV62090LM3478FT231XSATMEGA328P-ADS323424AA01T-I/OT

Divergence Meter Control Board bill of materials (BOM)

102 components, 60 distinct parts.

QtyPartRefs
1
MCP73831
U1
1
TLV62090
U2
1
LM3478
U3
1
FT231XS
U4
1
ATMEGA328P-A
U5
1
DS3234
U6
1
24AA01T-I/OT
U7
2
2N7002
Q1, Q2
1
RSR030N06TL
Q3
1
8MHz
X1
1
USB_OTG
P1
1
LiPo
P2
1
ISP
P3
1
HV
P4
1
OPTO
P5
1
DATA
P6
1
Battery
B1
2
1.1A
F1, F2
4
Jumper_NO_Small
G1, G2, G3, G4
1
100
RA1
Show 40 more
QtyPartRefs
1
0.01
RS1
4
Push
SW2, SW3, SW4, SW5
1
LPR6235
T1
1
VBUS
TP1
1
VCHG
TP2
1
VBAT
TP3
1
3.3V
TP4
1
GND
TP5
1
170V
TP6
1
RS1A
TP7
1
RS1B
TP8
1
CHG
D1
3
D_Small
D2, D4, D5
1
STPS4S200
D3
2
MMBZ9V1ALT1G
D6, D7
1
Ferrite
L1
1
1uH
L2
3
47u
C1, C4, C9
2
4.7u
C2, C3
3
22u
C5, C8, C12
4
0.01u
C6, C7, C13, C17
9
0.1u
C10, C11, C18, C19, C20, C22, C23, C24 +1
2
1u
C14, C15
1
100p
C16
1
1u
C21
3
1M
R1, R2, R16
2
470k
R3, R6
4
1k
R4, R9, R20, R21
1
2k
R5
2
150k
R7, R11
4
100k
R8, R22, R23, R24
1
20
R10
2
10k
R12, R26
1
0.1
R13
1
24k
R14
1
820k
R15
1
13k
R17
2
27
R18, R19
1
47k
R25
3
4.7k
R27, R28, R29

Divergence Meter Control Board design files

The KiCad project lives in the q61org/divergence_meter repository on GitHub; these links point at the commit this page was built from.

Divergence Meter Control Board: common questions

What microcontroller does the Divergence Meter Control Board use?

The Divergence Meter Control Board is built around the ATMEGA328P-A, from the AVR/Arduino family.

How big is the Divergence Meter Control Board?

The Divergence Meter Control Board measures 89 × 47 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Divergence Meter Control Board?

102 components, from 60 distinct parts. The full bill of materials is listed on this page.

Where can I download the Divergence Meter Control Board design files?

From the q61org/divergence_meter repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Divergence Meter Control Board design in my own project?

The repository has no license, so all rights stay with q61org. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Divergence Meter Control Board without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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